Skidproof plate for an excavator



FIG. 1 is a perspective view of skidproof plate for an excavator according to my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view of thereof;

FIG. 4 is an enlarged left side view thereof;

FIG. 5 is an enlarged right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a reference view of skidproof plate for an excavator according to my new design.

The broken line showing of cab is included for the purpose of illustrating environmental structure only and forms no part of the claimed design. 

The ornamental design for skidproof plate for an excavator, as shown and described. 